Chapter 25: Digestive System Flashcards
1
Q
BD of food
A
into small molecules to be absorbed into blood/lymph and transport to cells to make ATP
2
Q
Ingestions
A
putting food into mouth
3
Q
Mechanical processing includes
A
1) Mastication
2) Segmentation
3) Swallowing
4) Peristalsis
4
Q
MAstication
A
oral cavity, teeth and tongue
5
Q
Segemtation
A
- churning and mixing contents
- stomach and intestines
6
Q
Swalloing
A
tongue, pharynx, esophagus
7
Q
Peristalsis
A
(smooth muscle) moving food down GI tract
-esophagus, stomach, intestines
8
Q
Chemical digestion
A
- secretion of chemical and enzymes bd larger particles of food
- salivary glands, stomach, lives, pancreas, SI
9
Q
Secretions
A
-various: acids, enzymes, buffers
10
Q
Absorption
A
- molecules into blood stream or lymph
- intestines
11
Q
Excretion
A
-movement of waste products into GI tract
12
Q
Compaction
A
- dehydration of waste materials
- Large intestine
13
Q
Defecation
A
- Elimination of waste
- Rectum and anus
14
Q
Tunics of the Digestive System
A
1) Tunica mucosa
2) Tunica Submucosa
3) Tunica muscularis
4) Tunica Serosa/Adventitia
15
Q
Tunica Mucosa
A
- deepest
- Epi w/ exocrine cells, absorptive cells and goblet cells
- lamina propria
- muscularis mucosae
